• Miho Hamada, Shino Matsukawa, Satoshi Shimizu, Shinichi Kai, and Toshiyuki Mizota.
• Department of Anesthesia, Kyoto University Hospital, 54 Shogoin-Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507, Japan.
• J Anesth. 2017 Oct 1; 31 (5): 758-763.

PurposeData on the incidence of, risk factors for, and association with outcomes of acute kidney injury (AKI) after pediatric liver transplantation are scarce. We conducted a retrospective cohort study to determine the incidence of AKI after pediatric liver transplantation. In addition, we examined risk factors for AKI and association of AKI with outcomes.MethodsThis study included 156 children aged between 3 months and 18 years undergoing liver transplantation at Kyoto University Hospital. AKI was defined according to the Kidney Disease: Improving Global Outcomes guidelines based on serum creatinine and urine output. We used multivariable logistic regression with stepwise variable selection to identify independent risk factors for AKI.ResultsAKI occurred in 72 patients (46.2%); 34 (21.8%) had stage 1, 32 (20.5%) had stage 2, and 6 (3.8%) had stage 3 AKI. Factors independently associated with the development of AKI were increased preoperative total bilirubin level (adjusted odds ratio, 1.04 per 1 mg/dl; 95% confidence interval, 1.01-1.09; P = 0.026) and increased intraoperative blood loss (adjusted odds ratio, 1.03 per 10 ml/kg; 95% confidence interval, 1.00-1.06; P = 0.022). AKI was significantly associated with prolonged hospitalization (median, 61 vs. 46 days; P = 0.028). In-hospital mortality rate was 4.2% in patients with AKI and 3.6% in those without AKI (P = 1.000).ConclusionThe incidence of AKI after pediatric liver transplantation was 46.2%. Increased preoperative total bilirubin level and increased intraoperative blood loss were independently associated with the development of AKI. AKI was associated with prolonged hospitalization.

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